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dc.contributor.authorRUDNICK, V. A. de S.
dc.contributor.authorVIEIRA JÚNIOR, J. R.
dc.contributor.authorFERNANDES, C. de F.
dc.contributor.authorROCHA, R. B.
dc.contributor.authorTEIXEIRA, A. L.
dc.contributor.authorRAMALHO, A. R.
dc.contributor.authorESPINDULA, M. C.
dc.contributor.authorSANTOS, A. V.
dc.contributor.authorANJOS, E. F. M. dos
dc.contributor.authorUCHÔA, F. P.
dc.date.accessioned2020-09-10T04:39:21Z-
dc.date.available2020-09-10T04:39:21Z-
dc.date.created2020-09-09
dc.date.issued2020
dc.identifier.citationCoffee Science, v. 15, e151708, 2020.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1124813-
dc.descriptionRoot-knot disease is among the main diseases affecting coffee crop. The plant selection to the development new resistant cultivars is among one the most efficient methods of control. The present work aimed to quantify the resistance responses of Coffea canephora clones to root-knot nematode Meloidogyne incognita in the Western Amazon. For this, 17 previously selected clones were evaluated in three experimental trials, carried out in the municipalities of Ji-Paraná and Porto Velho, Rondônia. The resistance to root-knot nematodes M. incognita were evaluated by the numbers of gall in the roots (NG) and by the reproductive factor (RF). The resistance response was also interpreted according the genetic diversity of the clones based in their morphological traits. The clones BRS3210, C12, BRS2314, BRS3137 and BRS1216 are resistant to M. incognita with RF of 0.34, 0.62, 0.79, 0.86 and 0.98, respectively. BRS3213, C125, C15, BRS2336, BRS3220 and C09 clones were classified as susceptible, with RF of 1.93, 1.95, 2.00, 2.31, 2.32 and 2.35. The BRS3193, C160 and BRS2357 clones were classified as very susceptible, with RF values of 3.03, 4.41 and 5.82, respectively. The clustering based on the genetic diversity of morphological traits indicated that genotypes more similar to the Robusta botanic variety had lower RF. The hybrid plants showed intermediate degrees of resistance indicating the segregation for the character of the M. incognita resistance. The clones BRS3210, C12, BRS2299, BRS2314, BRS3137 and BRS1216 expressed resistance responses to M. incognita with potential for growing resistant genotypes in the Western Amazon.
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectNó da raiz
dc.subjectJi-Paraná (RO)
dc.subjectPorto Velho (RO)
dc.subjectRondônia
dc.subjectAmazônia Ocidental
dc.subjectWestern Amazon
dc.titleResistance of new Coffea canephora clones to root-knot nematode (Meloidogyne incognita) in the western amazon.
dc.typeArtigo de periódico
dc.subject.thesagroMelhoramento Genético Vegetal
dc.subject.thesagroDoença de Planta
dc.subject.thesagroCafé
dc.subject.thesagroCoffea Canephora
dc.subject.thesagroNematóide
dc.subject.thesagroMeloidogyne Incognita
dc.subject.thesagroComportamento de Variedade
dc.subject.thesagroResistência Genética
dc.subject.nalthesaurusPlant breeding
dc.subject.nalthesaurusRoot diseases
dc.subject.nalthesaurusRoot-knot nematodes
dc.subject.nalthesaurusVariety trials
dc.subject.nalthesaurusDisease resistance
riaa.ainfo.id1124813
riaa.ainfo.lastupdate2020-12-18 -02:00:00
dc.identifier.doihttps://doi.org/10.25186/.v15i.1708
dc.contributor.institutionVaneide Araújo de Sousa Rudnick, Universidade Federal de Rondônia (UNIR); JOSE ROBERTO VIEIRA JUNIOR, CNPAT; CLEBERSON DE FREITAS FERNANDES, CNPAT; RODRIGO BARROS ROCHA, CPAF-RO; ALEXSANDRO LARA TEIXEIRA, CPAF-RO; ANDRE ROSTAND RAMALHO, CPAF-RO; MARCELO CURITIBA ESPINDULA, CPAF-RO; Anderson Vieira Santos, Universidade Luterana do Brasil (ULBRA); Elize Francisca Mendes dos Anjos, Universidade Federal de Rondônia (UNIR); Francisco Paiva Uchôa, Universidade Federal de Rondônia (UNIR).
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